论文标题
量子场模拟器中弯曲的轻孔的实验性观察
Experimental Observation of Curved Light-Cones in a Quantum Field Simulator
论文作者
论文摘要
我们研究了由两个强耦合平行的一维准谐照量实现的klein-gordon模型的量子场模拟器中的信号传播。通过测量淬火后的局部音调场，我们观察到沿锋利的轻锥前部的相关性传播。如果局部原子密度不均匀，则这些繁殖方面是弯曲的。对于锋利的边缘，在系统的边界上反映了繁殖方面。通过从数据中提取前速度的空间依赖性变化，我们基于基于不均匀度量的曲面大地学的理论预测一致。这项工作扩展了一般时空指标中非平衡场动力学的量子模拟范围。
We investigate signal propagation in a quantum field simulator of the Klein-Gordon model realized by two strongly coupled parallel one-dimensional quasi-condensates. By measuring local phononic fields after a quench, we observe the propagation of correlations along sharp light-cone fronts. If the local atomic density is inhomogeneous, these propagation fronts are curved. For sharp edges, the propagation fronts are reflected at the system's boundaries. By extracting the space-dependent variation of the front velocity from the data, we find agreement with theoretical predictions based on curved geodesics of an inhomogeneous metric. This work extends the range of quantum simulations of non-equilibrium field dynamics in general spacetime metrics.
